At times you can only post what you have. You will note at the top that I clearly posted the known author of the song. And its source to me. In writing, research and discussion that generally is sufficient for example when you write a paper you do not mention copyright only date of publishing author and publisher. Another thought about traditional material. Until you find that something is recorded or published you should be safe enough to assume that it is still traditional. I have only recently received the publication information. Perhaps next time I will include....."as sung by"...

Conrad